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Merge branch 'cpufreq-scpi' 

* cpufreq-scpi:
  cpufreq: scpi: Fix incorrect arm_big_little config dependency
  cpufreq: scpi: invoke frequency-invariance setter function
This commit is contained in:
Rafael J. Wysocki 2018-03-02 10:44:44 +01:00
parent 0373ca7483 5c8b2623f6
commit b61e070305
2 changed files with 15 additions and 7 deletions
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6
drivers/cpufreq/Kconfig.arm
View File

@ -44,10 +44,10 @@ config ARM_DT_BL_CPUFREQ
config ARM_SCPI_CPUFREQ
tristate "SCPI based CPUfreq driver"
depends on ARM_BIG_LITTLE_CPUFREQ && ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
help
This adds the CPUfreq driver support for ARM big.LITTLE platforms
using SCPI protocol for CPU power management.
This adds the CPUfreq driver support for ARM platforms using SCPI
protocol for CPU power management.
This driver uses SCPI Message Protocol driver to interact with the
firmware providing the CPU DVFS functionality.

16
drivers/cpufreq/scpi-cpufreq.c
View File

@ -51,15 +51,23 @@ static unsigned int scpi_cpufreq_get_rate(unsigned int cpu)
static int
scpi_cpufreq_set_target(struct cpufreq_policy *policy, unsigned int index)
{
unsigned long freq = policy->freq_table[index].frequency;
struct scpi_data *priv = policy->driver_data;
u64 rate = policy->freq_table[index].frequency * 1000;
u64 rate = freq * 1000;
int ret;
ret = clk_set_rate(priv->clk, rate);
if (!ret && (clk_get_rate(priv->clk) != rate))
ret = -EIO;
return ret;
if (ret)
return ret;
if (clk_get_rate(priv->clk) != rate)
return -EIO;
arch_set_freq_scale(policy->related_cpus, freq,
policy->cpuinfo.max_freq);
return 0;
}
static int